Locking device



Feb. 15 1927..

M. BISHOP LOCKING DEVICE Fil ed March 18. 1925 2 Sheets-Shet 1 Feb. '15, 1927.

- 1,617,985 M. BISHOP LOCKING DEVICE Filed March 18. 1925 a shefeis-sheet 2 UNETE T,

Patented Feb. 15, 1927.

' MINNIEBISH'OR-OF ARCADIA," FLORIDA. f

, itusss I] Lo'oKInG Dam en,

Application f rm r 18, 19 25. Seria1 No. 1t i,456. V v

i This invention aims to provide a novel but simple locking device whereby the unauthorized operation of a motor propelled vehicle maybe prevented.

It is within the province of thediscl-osure to improve generally and to enhance the utility of devices of that t ype to Which the invention appertains.

'VVith the above and" other objects inview which will appear as the description" proceeds, the invent on resides in the comb1nation and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood [that changes in the precise embodiment of the invention herein dlsclosed, may be a made I Within the scope of" What is claimed Without departing from the tion.

In the; accompanying drawings Figurerl showsin elevation, a

ing insection; Figure 2 is a section on the line 2-2 of Figure 1; Figure 3 is a longitudinal section; .Figure 4 is a longitudinal section on the line s-4 of Figures 3 and, 1, the parts being in the positions which they I will assumejwhen the device is unlocked;

Figure 5 is a section similar toEigure 4 but showing. he parts as they Will appear when they are inlocked position.

The device fo-rming the subject matter of thisapplication may be mounted in any desired Way onthevehicle, and may be used on automobiles of Widely diii'erent sorts.

, By way ofillustrationg however, there appears in Figure 1, a transmission housing 1, the drive shaft 2 of the transmission. being supported for rotation, as indicated at 3, in the housing 1. By means of a universal joint 4 of any desired construction, the shaft 2 is connected to a driven shaft 5 rotatable in a tubular casing 6 provided at its on ward end with cuplike shell 7 movable Within a similar shell 8, the shell. 8j'he1ng fixedly attached to the transmission housing 1, or being supported in any other de-' sired way. The floor boards, or any other accessible part of the frame Work of the vehicle, are designated by the numeral; 9. No novelty isclaimed for the parts hereinbeforealluded to, saving in so far as they may enter into combination with parts hereinafter-specified. a In carrying out the invention there is spirit of the inven-' device con-' structed in accordance w th: the invention parts'b'emg broken away, and parts appear provided a tubular guide 10 ivhich, perhaps,

may extend, upwardly through the floor boards 9. The guide 10 is supplied at its lower end with a foot 411 connected by securing elements 12 with the shell; 8, that shell being desig natedas a support, since it carries the guide 10 and other partsoi [the device. A holdingmemberle, in the form ,ofa bolt, is mounted for right linerethough'this detail is not insisted] upon. I The lock 15 operates a bolt 17 fadapted'to coop: erate With seats "18 and l 'formed in the holding member or bolt 14, and spaced apart, longitudinally ofthe holding member. A tubular plunger 20 mounted for re ciprocation on the tubular guide 10 and has" "ciprocation in theguidellO A lock 15'is secured to the guide 10am projects laterally therefrom, the lock being adapted to'bef operated, by a key, as indicated at 16, al-

a slot 21, receiving the lock 15, and permitting the plunger 20 to be reciprocated with respectrto the look, It is preferable to mount the lock 15 onthe'guide 10 rather than on some' oth'er part of the -device,fbecause, when the. lock is mounted as specified, the gbolt V 17 can have a comparatively it short throwand still engage in the seats 18 and'19' of theholding member 14:. The tubular plunger 20 is supplied with a lateral fin 22 mounted to slide in anoifset 230 1 a collar plate 2. L. secured at 25 ftothejfloor boards 9, or elsewhere, the construction being such that,1 although the tubular plunger 20 canxmove 'endvvise, it cannot 'ro tate. The fin 22 has a-longitudinalslot 26 through Which I extends a securing element of the tubular plunger'QO there is a cap 29.

An abutment disk-30 is disposed in the tubular plunger 20, ncarto the upper, closed end thereof, the disk being held in place by a securing device 31. The plunger 30 is equipped at its upper end With a reduced stem 32, passing slidably through the abutment disk 30. 0n the outer end of the stem 32 of the 28, such as a screw, mounted in the o-fi set v '23 of the collar plate 24. On the lower end plunger 20 is a cotter pin, and Washer The stem 32 forms a shoulder 84 in the bolt 14. A compression spring 35 surrounds the stem 32, one end of the spr1ng'35 abutting against the member30, andrthe other end of thespring abutting against the, shoulder 34:. 'The holding bolt 14 is surrounded throughout a portion of its length by a compression spring .86, the inner end of the compression spring 36 abutting against the outerend of the guide 10, and the outer end of the spring V 36 engaging the abutment 30.

' 28 stopping the outward movement of the plunger 20, the bolt 17 of the lock being engaged in the seat 19 of'the holding member 14. Upon occasion, the bolt '17 may be withdrawn from engagement in the seat 19 of the member 14, whereupon the plunger may be forced inwardly. and downwardly, the spring 36 being compressed, and the bolt 14 being carried downwardly until it is in such a position with respect to the universal joint 4 that-the shafts-2 and 5 cannot rotate. lVhen the plunger 20 is moved downwardly, the-cap 29fontl1e plunger covers the securing elements 12' and the same cannot be removed.

It is impossible, therefore, to detachthe locking mechanism from the universal jolnt housing 78' when the device is in locked position. WV hen the mechanism is in locked position, the bolt 17 may be engaged in the seat 18 onthe holding member 14, to maintain that member in the position delineatedin Figure 5 'of the drawings. Whenthe parts are in the locked position shown in Figure 5, the spring permits a-little vertical movement of the holding bolt 14:, before the bolt 17 is engaged in the seat 18. As soon as the bolt 17 is-retracted, the spring 7 36 carries the plunger 20 upwardly into the unlocked position of Figure 4, the holding memberor bolt 14 also being moved, into the unlocked positionof that figure.

Having thus described the invention, what is claimed is 2+- 7 7 1. In a motor-propelled vehicle, a. transmission, a drive shaft'operated thereby, a universal joint interposed in the drive shaft, mechanism for engaging directly with the universal joint thereby to hold the shaft against rotation, and meansv under the" control of an operator for locking said mechanism in engagement directly with the universal joint.

2.,In. amotor propelled vehicle, a' transmission, a drive shaft operated thereby, a universal joint interposed in the drive shaft, a shell covering the universal joint, a guide -mounted on the shell of the universal joint,

means mounted movably in the guidefor engaging I directly with the universal. joint thereby to hold the shaft against rotation, and mechanism for locking said means in engagement with the universal joint.-

8-. In a motor-propelled vehicle, a. transmission, a drive shaft operated thereby, a universaljoint interposed in the drive shaft, a shell covering the universal joint, a tubular guide, a securingelement connecting the guide with the shell, a bolt slidable inthe guide, into andout of engagement with the universal joint, a lock carriedby the guide and cooperating with the belt, a tubular plunger mounted for reciprocation; on. the

guide, the plunger beingprovided with an, openlng receiving the lo'ckand' permitting the plunger to reciprocate. with respect to the guide, means for limiting the reciprocatory movement of the plunger on. the guide, a cap on the lower end of the plunger and covering 7 the securing element when the plunger is slid downwardly, an abutment in the plunger, the bolthaving a reduced end slidable in'the abutment and provided with of the second" compression spring engaging the end of the gu de, andltheother end of the second compression spring engaging the abutment. I,

In testimony that. Iflclaim the foregoing as-my own,I have hereto atfixed my. signa; ture.

MINNIE BisHoPj.

. a shoulder, a compression springabout the. 3 i 

